Radeon HD 4770 vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which comes with core speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon HD 4770		80 Watts
	Difference: 5 Watts (7%)

Memory Bandwidth

As far as performance goes, the Radeon RX 460 2GB should theoretically be a lot better than the Radeon HD 4770 in general. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 4770		51200 MB/sec
	Difference: 60800 (119%)

Texel Rate

The Radeon RX 460 2GB should be a lot (about 154%) better at texture filtering than the Radeon HD 4770. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 4770		24000 Mtexels/sec
	Difference: 37040 (154%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 460 2GB is the winner, by a large margin. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 4770		12000 Mpixels/sec
	Difference: 5440 (45%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.